摘要
以乙酸锌[Zn(CH_3COO)_2·2H_2O]、氢氧化锂(LiOH·H_2O)、氯化铜为原料,采用微波辅助加热溶胶-凝胶法制备了氧化锌和氢氧化铜复合型催化剂,并用X射线衍射(XRD)光谱、能谱仪(EDS)、透射电镜(TEM)和红外光谱仪进行了表征。用15 W的紫外灯和室外可见光作为光源,一定浓度的活性艳蓝X-BR为光催化反应模型污染物,研究了复合型催化剂的光催化性能。结果表明,制备的氢氧化铜和ZnO复合物(铜和锌的物质的量之比3∶7)时,对质量浓度为40 mg/L的活性艳蓝X-BR溶液降解30 min,染料降解率可达到78%。该催化剂对其他染料具有普适性,且能够回收重复利用。
Cu（OH）2/ZnO composite catalyst is prepared with zinc acetate [Zn（CH3COO）2· 2H2O], lithium hydroxide （LiOH · H2O） and copper chloride as raw materials by microwave assisted sol-gel method, and the products are characterized using X ray diffraction （XRD） spectroscopy, energy dispersive spectroscopy （EDS）, transmission electron microscopy （TEM） and infrared spectrometer. The photocatalytic activity of Cu（OH）JZnO composite catalyst is studied using 15 W UV lamp and outdoor visible light as the light sources. The results show that 40 mg/L of Reactive Brilliant Blue X-BR solution is degraded for 30 min using Cu（OH）JZnO composite catalyst （molar ratio of copper to zinc is 3：7）, and the degradation rate can reach 78%. The catalyst can be reused.
出处
《印染》
北大核心
2017年第19期42-45,共4页
China Dyeing and Finishing
关键词
印染废水
微波辅助
复合光催化剂
光催化降解
dyeing and printing wastewater
microwave assisted
composite photocatalyst
photocatalyt ic degradation
